This is the product tag for model AR-4X Acoustic Suspension Loudspeaker System; manufactured by Acoustic Research, Inc, 24 Thorndike Street, Cambridge, Massachusetts; in the mid 1970's. No copyright notice evident, Public Domain under Rule 5 of the United States Copyright Statutes. Dimensions are: 5" width by 8 1/2" height. Etext created by Gerard Arthus